A French police attack dog takes down a trainer during a police demonstration in Orleans, France fall 2017. The demonstration was part of a larger recruitment fair for police, fire and rescue, and military organizations. Photo by Doug Oakley

A woman is arrested on Broadway in Oakland in 2009 in a chaotic scene of looting, vandalism, violence and a hard police reaction following the verdict in the trial of former BART police officer Johannes Mehserle who was convicted of shooting an unarmed passenger in the back. Photo by Doug Oakley

San Francisco police, in 2005, arrested a clown named Jake Wasserman for tresspassing during a tenant protest outside a real estate open house in the Mission at a building where tenants were previously evicted. Photo by Doug Oakley

Fire fighters put water on a fire leaping out a window at 3109 Sacramento Street in Berkeley in 2012. No injuries were reported, but the fire destroyed two apartments and a building behind it. Photo by Doug Oakley

Berkeley and Oakland police officers took into custody a woman clad only in a bath towel from a Berkeley home in 2007. Police say the woman was a passenger in a car wanted in an armed robbery. Photo by Doug Oakley

Marine Coprs supporter Weston Hoover tries to get past protester from World Can't Wait who chained themselves to the door of the Berkeley Marine Corps recruiting center. Three protesters who chained themselves to the front door were arrested by Berkeley police. The protest came three days after the Berkeley City Council declared the Marines "uninvited and unwelcome intruders" in the city. Photo by Doug Oakley

Two Berkeley fire fighters were injured with minor burns during a fire that gutted much of a six unit apartment building at the corner of Fulton and Parker streets. The fire did an estimated $400,000 in damage and displaced 11 tenants. Twenty eight fire fighters battled the two-alarm blaze. Photo by Doug Oakley

About 200 black students at UC Berkeley stood in silent protest for over two hours at Sather Gate on campus in 2010 in reaction to the discovery of a noose hanging in the library at UC San Diego. "We are brothers and sisters in a nonviolent, silent demonstration, standing in solidarity with the UCSD students who have been affected by blatant acts of ignorance and hatred," a flyer said. Photo by Doug Oakley